Electrophotographic photosensitive member comprising a tris-azo

Details Electrophotographic photosensitive member comprising a tris-azo Electrophotographic photosensitive member comprising a tris-azo

1990-09-07

1993-12-21

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 66, 430 73, 355296, 358401, G03G 506

Patent

active

052720284

ABSTRACT:
An electrophotographic photosensitive member has a photosensitive layer provided on an electroconductive support. The photosensitive layer contains an azo pigment represented by the general formula (I): ##STR1## wherein Ar.sub.1 and Ar.sub.2 are respectively a divalent aromatic hydrocarbon group or a divalent heterocyclic group which may be the same or different and may have a substituent, and A.sub.1 and A.sub.2 are respectively a coupler residue having a phenolic hydroxyl group which may be the same or different.

REFERENCES:
patent: 4426432 (1984-01-01), Sawada et al.
patent: 4433039 (1986-09-01), Takiguchi et al.
patent: 4760003 (1988-07-01), Matsumoto et al.
"A. C. Bellaart", Reduction of Oromatic Nitro Compounds With Compounds With Phosphine, Tetrahedron, vol. 21, pp. 3285-3288 (1965).
Organic Chemistry, 3rd Gd. by Hendrickson, et al., published by McGraw-Hill, (1970) p. 1167.

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